A TWO-DAY MARINE CHRONOMETER
Hamilton Watch Co., Model 21
the silvered dial signed and numbered HAMILTON LANCASTER. PA., U.S.A. N. 3607 1941, the movement numbered 2E3607, Arabic hour numerals, subsidiary seconds and up-and-down dials, black hands, nickel plated movement, top plate inscribed MODEL 21. 14 JEWELS. HAMILTON WATCH CO. LANCASTER, PENN. MADE IN U.S.A. N3607-1941, the pillow plate numbered 2E3607, Earnshaw escapement, uncut monometallic alloy balance, 'Elinvar Extra' helical balance spring, Hamilton spring detent with jewelled locking stone, brass bowl, gimballed in three-tier brass-bound mahogany box with rectangular HAMILTON plaque, external brass drop handles
102mm. dial diam., 193mm. squ. box